CVE - CVE-2023-42448

CVE-ID
CVE-2023-42448	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
Hydra is the layer-two scalability solution for Cardano. Prior to version 0.13.0, the specification states that the contestation period in the datum of the UTxO at the head validator must stay unchanged as the state progresses from Open to Closed (Close transaction), but no such check appears to be performed in the `checkClose` function of the head validator. This would allow a malicious participant to modify the contestation deadline of the head to either allow them to fanout the head without giving another participant the chance to contest, or prevent any participant from ever redistributing the funds locked in the head via a fan-out. Version 0.13.0 contains a patch for this issue.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://github.com/input-output-hk/hydra/blob/master/CHANGELOG.md#0130---2023-10-03 URL:https://github.com/input-output-hk/hydra/blob/master/CHANGELOG.md#0130---2023-10-03 MISC:https://github.com/input-output-hk/hydra/blob/master/hydra-plutus/src/Hydra/Contract/Head.hs#L284-L296 URL:https://github.com/input-output-hk/hydra/blob/master/hydra-plutus/src/Hydra/Contract/Head.hs#L284-L296 MISC:https://github.com/input-output-hk/hydra/blob/master/hydra-plutus/src/Hydra/Contract/Head.hs#L320-L323 URL:https://github.com/input-output-hk/hydra/blob/master/hydra-plutus/src/Hydra/Contract/Head.hs#L320-L323 MISC:https://github.com/input-output-hk/hydra/commit/2f45529729e28254a62f7a7c8d6649066923ed1f URL:https://github.com/input-output-hk/hydra/commit/2f45529729e28254a62f7a7c8d6649066923ed1f MISC:https://github.com/input-output-hk/hydra/security/advisories/GHSA-mgcx-6p7h-5996 URL:https://github.com/input-output-hk/hydra/security/advisories/GHSA-mgcx-6p7h-5996
Assigning CNA
GitHub (maintainer security advisories)
Date Record Created
20230908	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20230908)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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